­ 1 ­ Product Name: n­Pentane Safety Data Sheet 1. PRODUCT INDENTIFICATION n­Pentane or normal­Pentane Name Synonyms CAS# Europe EC# Product Uses 2. pentane 109­66­0 203­692­4 gasoline component, low temperature thermometers, foam blowing agent, aerosol propellant, solvent, heat transfer fluid (refrigeration – mainly in Europe) & others HAZARDS Quick Guide: extremely flammable liquid, heavy vapour may travel, distant ignition & flashback possible Canada – WHMIS B 2 Key: B 2 – Flash Point <38 o C, B 3 – Flash Point >38 o C & <93 o C D 1 – Immediately Toxic, D 2 – Chronic Toxicity C – Oxidising Substance, E – Corrosive, F – Reactive Substance U.S.A. – HMIS Health – 1, Fire – 4, Reactivity – 0 Key: 0=minimal, 1=slight, 2=moderate, 3=serious, 4=severe 3. COMPOSITION Pentane % 100% TWAEV / TLV mg/m 3 500 / 1760 LD50 (mg/kg) ORAL >2000 LD50 (mg/kg) SKIN not known LC50 ppm INHALATION 123,800 4. FIRST AID SKIN: Wash with plenty of water. Remove contaminated clothing and do not reuse until thoroughly laundered. Rapid evaporation may make washing irrelevant . . . Wash eyes with plenty of water, holding eyelids open. Very rapid evaporation may make washing irrelevant . EYES: . . INHALATION: Remove from contaminated area promptly. CAUTION: Rescuer must not endanger himself! If breathing stops, administer artificial respiration and seek medical aid promptly. INGESTION: Give plenty of water to dilute product. Do not induce vomiting (NOTE below). Keep victim quiet. If vomiting occurs, lower victim’s head below hips to prevent inhalation of vomited material. Seek medical help promptly. Inadvertent inhalation of vomited material may seriously damage the lungs. The danger of this is greater than the risk of poisoning through absorption of this relatively low­toxicity substance. The stomach should only be emptied under medical supervision, and after the installation of an airway to protect the lungs. 5. FIRE FIGHTING & FLAMMABILITY Flash Point Autoignition Temperature Flammable Limits Combustion Products Fire Fighting Precautions Static Charge Accumulation ­40 o C / ­40 o F (closed cup) 260 o C / 500 o F 1.5% – 7.8% carbon monoxide, nitrogen oxides, smoke, part oxidised hydrocarbon fragments foam, dry chemical, water fog or spray only to cool, product floats on water – water jet spreads flames; fire fighters must wear SCBA readily accumulates a static charge on agitation or pumping
Please ensure that this MSDS is given to, and explained to people using this product. ­ 2 ­ Product Name: n­Pentane 6. ACCIDENTAL RELEASE MEASURES Very Serious Fire Potential: Blanket spill with foam as a precaution against accidental ignition. Take extreme care to avoid sparks – do not operate (turn on OR off) electrical appliances near spill, unless explosion proof. Leak Precaution dyke to control spillage and prevent environmental contamination Handling Spill ventilate contaminated area; recover free liquid with suitable pumps; residue likely to evaporate rapidly . . . 7. HANDLING & STORAGE Store in a cool environment, away from sources of ignition, heat and oxidising agents. Use only heavy gauge drums capable of containing at least 1 atmosphere pressure. Keep drums out of direct sunlight. ALWAYS use non­sparking bronze or aluminium hand tools. All electrical and mechanical equipment (including lighting, switchgear and forklift trucks) used with or around this product must be explosion­proof! ALWAYS ground or electrically bond both the source container and the receiving container, and transfer pump before transferring contents. Avoid splashing by ensuring that the product nozzle is below the surface in the receiving container. Empty containers may contain a flammable / explosive vapour. Always ensure that containers, whether empty or full, or part full, are tightly sealed unless in use. Before opening a drum check the drum head. If it is bulging, open the bung slowly to release pressure, keeping your face as far from the bung as possible. Consider wearing a face shield when doing this. Avoid breathing product vapour. Use with adequate ventilation to control vapour titre in the workplace to regulated limits (Part 8). If dealing with a spill & thorough ventilation is not possible, wear an air­supplied respirator. Never cut, drill, weld or grind on or near this container. Avoid prolonged contact with skin and wash work clothes frequently. An eye bath and safety shower must be available near the workplace. Pentane volatilises readily 8. EXPOSURE CONTROL & PERSONAL PROTECTION Ontario TWAEV Ontario STEV ACGIH TLV OSHA PEL Ventilation Hands Eyes Clothing 9. 600ppm / 1770mg/m 3 750ppm / 2210mg/m 3 600ppm / 1770mg/m 3 500ppm / 1500mg/m 3 mechanical ventilation may be required to maintain airborne titre below TWAEV / TLV no special protective glove required; nitrile or “Viton” gloves are resistant – other types may also protect safety glasses with side shields – always protect the eyes no special protective clothing required; a face shield is recommended if opening drums which may be under internal pressure PHYSICAL PROPERTIES Odour & Appearance Odour Threshold Vapour Pressure Evaporation Rate (Butyl Acetate = 1) Vapour Density (air = 1) Boiling Range Freezing Point Specific Gravity Water Solubility Also soluble in alcohols Viscosity pH Conversion Factor Molecular Weight clear, colourless, mobile liquid with pleasant gasoline odour 120 – 1150ppm – very wide range 488mmHg / 65kPa (20 o C / 68 o F) 12­13 2.5 36 o C / 97 o F – boils at slightly below body temperature ­130 o C / ­202 o F 0.626 (20/20 o C) 38mg/litre (25 o C / 77 o F) – virtually insoluble non­polar organic solvents, poor solubility in methanol, soluble in ethanol and other 0.23centipoise (20 o C / 68 o F) – very thin, mobile liquid; splashes readily none – (does not liberate hydrogen ions when dissolved) 1ppm = 2.94mg/m 3 72grams per mole
Please ensure that this MSDS is given to, and explained to people using this product. ­ 3 ­ Product Name: n­Pentane 10. REACTIVITY Dangerously Reactive With Also Reactive With Stability Decomposes in Presence of Decomposition Products Sensitive to Mechanical Impact 11. strong oxidising agents; fluorine or chlorine gas may cause explosion with pentane bromine; damages plastics – eg: polypropylene, ABS, polyurethane & some grades of polyethylene stable; will not polymerize not known none apart from Hazardous Combustion Products no TOXICITY Effects, Acute Exposure Skin Contact Skin Absorption Eye Contact Inhalation little or no effect – evaporates very rapidly nil to slight; no toxic effects likely by this route may be slightly irritating – evaporates very rapidly headache, dizziness, drowsiness, intoxication; pentane concentration from spill can become high enough to displace oxygen, causing asphyxia not known – not a route of industrial exposure Ingestion Effects, Chronic Exposure General prolonged exposure may cause dermatitis; long term neurological effects occur with n­hexane exposure by inhalation; may also happen with n­pentane, but there is no actual evidence for this Sensitising Carcinogen/Tumorigen Reproductive Effect Mutagen Synergistic With LD50 (oral) LD50 (skin) LC50 (inhalation) 12. not a sensitiser in humans or animals not considered a tumorigen or a carcinogen in humans or animals no known effect in humans or animals no known effect on humans or animals not known above 2000mg/kg (rat) not known 123,800ppm (rat) ECOLOGICAL INFORMATION Bioaccumulation Biodegradation Abiotic Degradation by Mobility in soil, water Aquatic Toxicity LC0 (Fish, 96hr) EC50 (Crustacea) moderate bioaccumulator – evaporates very rapidly limiting exposure degrades readily & rapidly in the presence of oxygen; over 90% of theoretical BOD in 4 weeks (Japanese MITI Test); 72% in 8 days (Total Solvents, France) reacts with atmospheric hydroxyl radicals; estimated ½­life in air is 4 days; in water photooxidation ultraviolet light gives a degradation rate to CO2 of 31% in 24 hours may move readily in soil and water; however rapid evaporation may limit mobility no mortality observed at 100mg/litre (Oncorynchus kisutch) 11.8mg/litre (Artemia salina, 24hr), 9.7mg/litre (Daphnia magna, 48hr) NOTE: Very rapid evaporation of pentane makes it hard to carry out a meaningful aquatic toxicity test . . . 13. Waste Disposal Containers DISPOSAL do not flush to sewer, recycle solvent if possible, if local regulations permit, may be put in sanitary landfill, may be incinerated in approved facility Drums should be reused. Recondition and pressure test by a licensed reconditioner prior to re­use. Pails must be vented and thoroughly dried prior to crushing and recycling. IBCs (intermediate bulk containers): polyethylene bottle must be pressure tested & recertified at 30 months. Replace at 60 months (5yrs). Steel containers must be inspected, pressure tested & recertified every 5 years. Never cut, drill, weld or grind on or near this container, even if empty
Please ensure that this MSDS is given to, and explained to people using this product. ­ 4 ­ Product Name: n­Pentane 14. TRANSPORT CLASSIFICATION Canada TDG AND U.S.A. 49 CFR PIN Shipping Name Class Packing Group Marine Pollutant ERAP Required UN­1265 pentanes 3 I not a marine pollutant NO EMERGENCY INFORMATION Canada Call CANUTEC (collect) (613) 996­6666 U.S.A. Call CHEMTREC (800) 424­9300 15. REGULATIONS Canada DSL U.S.A. TSCA Europe EINECS on inventory on inventory on inventory Immediately Dangerous to Life or Health: 1500 ppm (Based on 10% of the lower explosion limit for safety considerations even though the relevant toxicological data indicated that irreversible health efects or impairment of escape existed only at higher concentrations.) OSHA Standards: Permissible Exposure Limit: Table Z­1 8­hr Time Weighted Avg: 1000 ppm (2950 mg/cu m). Vacated 1989 OSHA PEL TWA 600 ppm (1800 mg/cu m); STEL 750 ppm (2250 mg/cu m) is still enforced in some states. NIOSH Recommendations: Recommended Exposure Limit: 10 Hr Time­Weighted Avg: 120 ppm (350 mg/cu m). Recommended Exposure Limit: (15 Min) Ceiling value: 610 ppm (1800 mg/cu m). Threshold Limit Values: 8 hr Time Weighted Avg (TWA): 600 ppm. /Pentane, all isomers/ Excursion Limit Recommendation: Excursions in worker exposure levels may exceed 3 times the TLV­TWA for no more than a total of 30 minutes during a work day, and under no circumstances should they exceed 5 times the TLV­TWA, provided that the TLV­TWA is not exceeded. /Pentane, all isomers/ Atmospheric Standards: This action promulgates standards of performance for equipment leaks of Volatile Organic Compounds (VOC) in the Synthetic Organic Chemical Manufacturing Industry (SOCMI). The intended effect of these standards is to require all newly constructed, modified, and reconstructed SOCMI process units to use the best demonstrated system of continuous emission reduction for equipment leaks of VOC, considering costs, non air quality health and environmental impact and energy requirements. n­Pentane is produced, as an intermediate or final product, by process units covered under this subpart. TSCA Requirements: Section 8(a) of TSCA requires manufacturers of this chemical substance to report preliminary assessment information concerned with production, exposure, and use to EPA as cited in the preamble in 51 FR 41329. Pursuant to section 8(d) of TSCA, EPA promulgated a model Health and Safety Data Reporting Rule. The section 8(d) model rule requires manufacturers, importers, and processors of listed chemical substances and mixtures to submit to EPA copies and lists of unpublished health and safety studies. Pentane is included on this list. 16. OTHER INFORMATION Prepared for Megaloid Laboratories by Peter Bursztyn, (705) 734­1577 Data from RTECS, HSDB (Haz. Substance Data Base), Cheminfo (CCOHS), IUCLID Datasheets (ESIS – European Chem. Substance Info. System), & others. Preparation Date: August 2006 Revision Date: July 2009, June 2012
Please ensure that this MSDS is given to, and explained to people using this product.